linux-kernel - Re: [linux-next:master] [perf vendor events] e2641db83f: perf-sanity-tests.perf_all_PMU

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Message-ID: <Zo+SC/OORdGWXQ84@xsang-OptiPlex-9020>
Date: Thu, 11 Jul 2024 16:04:27 +0800
From: Oliver Sang <oliver.sang@...el.com>
To: "Liang, Kan" <kan.liang@...ux.intel.com>
CC: Ian Rogers <irogers@...gle.com>, <oe-lkp@...ts.linux.dev>,
	<lkp@...el.com>, Linux Memory Management List <linux-mm@...ck.org>, "Namhyung
 Kim" <namhyung@...nel.org>, Weilin Wang <weilin.wang@...el.com>, Caleb
 Biggers <caleb.biggers@...el.com>, Alexandre Torgue
	<alexandre.torgue@...s.st.com>, Maxime Coquelin <mcoquelin.stm32@...il.com>,
	<linux-perf-users@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<oliver.sang@...el.com>
Subject: Re: [linux-next:master] [perf vendor events] e2641db83f:
 perf-sanity-tests.perf_all_PMU_test.fail

hi, Kan,

On Wed, Jul 10, 2024 at 09:15:05AM -0400, Liang, Kan wrote:
> 
> 
> On 2024-07-10 12:59 a.m., kernel test robot wrote:
> > 
> > 
> > Hello,
> > 
> > kernel test robot noticed "perf-sanity-tests.perf_all_PMU_test.fail" on:
> > 
> > commit: e2641db83f18782f57a0e107c50d2d1731960fb8 ("perf vendor events: Add/update skylake events/metrics")
> > https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
> > 
> > [test failed on linux-next/master 82d01fe6ee52086035b201cfa1410a3b04384257]
> > 
> > in testcase: perf-sanity-tests
> > version: 
> > with following parameters:
> > 
> > 	perf_compiler: gcc
> > 
> > 
> > 
> > compiler: gcc-13
> > test machine: 16 threads 1 sockets Intel(R) Xeon(R) E-2278G CPU @ 3.40GHz (Coffee Lake) with 32G memory
> > 
> > (please refer to attached dmesg/kmsg for entire log/backtrace)
> > 
> > 
> > we also observed two cases which also failed on parent can pass on this commit.
> > FYI.
> > 
> > 
> > caccae3ce7b988b6 e2641db83f18782f57a0e107c50
> > ---------------- ---------------------------
> >        fail:runs  %reproduction    fail:runs
> >            |             |             |
> >            :6          100%           6:6     perf-sanity-tests.perf_all_PMU_test.fail
> >            :6          100%           6:6     perf-sanity-tests.perf_all_metricgroups_test.pass
> >            :6          100%           6:6     perf-sanity-tests.perf_all_metrics_test.pass
> > 
> > 
> > 
> > 
> > 
> > If you fix the issue in a separate patch/commit (i.e. not just a new version of
> > the same patch/commit), kindly add following tags
> > | Reported-by: kernel test robot <oliver.sang@...el.com>
> > | Closes: https://lore.kernel.org/oe-lkp/202407101021.2c8baddb-oliver.sang@intel.com
> > 
> > 
> > 
> > 2024-07-09 07:09:53 sudo /usr/src/linux-perf-x86_64-rhel-8.3-bpf-e2641db83f18782f57a0e107c50d2d1731960fb8/tools/perf/perf test 105
> > 105: perf all metricgroups test                                      : Ok
> > 2024-07-09 07:10:11 sudo /usr/src/linux-perf-x86_64-rhel-8.3-bpf-e2641db83f18782f57a0e107c50d2d1731960fb8/tools/perf/perf test 106
> > 106: perf all metrics test                                           : Ok
> > 2024-07-09 07:10:23 sudo /usr/src/linux-perf-x86_64-rhel-8.3-bpf-e2641db83f18782f57a0e107c50d2d1731960fb8/tools/perf/perf test 107
> > 107: perf all libpfm4 events test                                    : Ok
> > 2024-07-09 07:10:47 sudo /usr/src/linux-perf-x86_64-rhel-8.3-bpf-e2641db83f18782f57a0e107c50d2d1731960fb8/tools/perf/perf test 108
> > 108: perf all PMU test                                               : FAILED!
> 
> Can you please try the -vvv option, which should tell the failed event?
> perf test -vvv "perf all PMU test"

after add -vvv:

2024-07-11 07:45:20 sudo /usr/src/linux-perf-x86_64-rhel-8.3-bpf-e2641db83f18782f57a0e107c50d2d1731960fb8/tools/perf/perf test -v 108
108: perf all PMU test:
--- start ---
test child forked, pid 18989
Testing (null)
---- end(-1) ----
108: perf all PMU test                                               : FAILED!


> 
> Thanks,
> Kan
> > 
> > 
> > 
> > The kernel config and materials to reproduce are available at:
> > https://download.01.org/0day-ci/archive/20240710/202407101021.2c8baddb-oliver.sang@intel.com
> > 
> > 
> > 
>